I bought this for my D850 as the pixel count is very unforgiving on my Nikon 50mm f1.4G and forced me to at least double my shutter speed, increasing my ISO, which I didn't want. The good of this lens:

There was a very good thread on this, a few weeks ago: https://www.dpreview.com/forums/thread/4367289 Short answer is: if you want to keep it small, good quality and don't mind stopping down at the ...